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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_SAMPLE_H
#define __PERF_SAMPLE_H
#include <linux/perf_event.h>
#include <linux/types.h>
/* number of register is bound by the number of bits in regs_dump::mask (64) */
#define PERF_SAMPLE_REGS_CACHE_SIZE (8 * sizeof(u64))
struct regs_dump {
u64 abi;
u64 mask;
u64 *regs;
/* Cached values/mask filled by first register access. */
u64 cache_regs[PERF_SAMPLE_REGS_CACHE_SIZE];
u64 cache_mask;
};
struct stack_dump {
u16 offset;
u64 size;
char *data;
};
struct sample_read_value {
u64 value;
u64 id; /* only if PERF_FORMAT_ID */
u64 lost; /* only if PERF_FORMAT_LOST */
};
struct sample_read {
u64 time_enabled;
u64 time_running;
union {
struct {
u64 nr;
struct sample_read_value *values;
} group;
struct sample_read_value one;
};
};
static inline size_t sample_read_value_size(u64 read_format)
{
/* PERF_FORMAT_ID is forced for PERF_SAMPLE_READ */
if (read_format & PERF_FORMAT_LOST)
return sizeof(struct sample_read_value);
else
return offsetof(struct sample_read_value, lost);
}
static inline struct sample_read_value *next_sample_read_value(struct sample_read_value *v, u64 read_format)
{
return (void *)v + sample_read_value_size(read_format);
}
#define sample_read_group__for_each(v, nr, rf) \
for (int __i = 0; __i < (int)nr; v = next_sample_read_value(v, rf), __i++)
#define MAX_INSN 16
struct aux_sample {
u64 size;
void *data;
};
struct perf_sample {
u64 ip;
u32 pid, tid;
u64 time;
u64 addr;
u64 id;
u64 stream_id;
u64 period;
u64 weight;
u64 transaction;
u64 insn_cnt;
u64 cyc_cnt;
u32 cpu;
u32 raw_size;
u64 data_src;
u64 phys_addr;
u64 data_page_size;
u64 code_page_size;
u64 cgroup;
u32 flags;
u32 machine_pid;
u32 vcpu;
u16 insn_len;
u8 cpumode;
u16 misc;
u16 ins_lat;
union {
u16 p_stage_cyc;
u16 retire_lat;
};
bool no_hw_idx; /* No hw_idx collected in branch_stack */
char insn[MAX_INSN];
void *raw_data;
struct ip_callchain *callchain;
struct branch_stack *branch_stack;
struct regs_dump user_regs;
struct regs_dump intr_regs;
struct stack_dump user_stack;
struct sample_read read;
struct aux_sample aux_sample;
};
/*
* raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
* 8-byte alignment.
*/
static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
{
return sample->raw_data - 4;
}
#endif /* __PERF_SAMPLE_H */
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